Window-ventilator.



UNITED sTATEs ORLANDO D. LENT, OF PEEKSKILL, NEW YORK.

WINDOW-VENTILATOR.

Specication of Letters Patent. i

Patented Aug. 27, 1907.

Application led January 17,1907. Serial No. 352,775.

To all whom 'it may concern:

Be it known that I, ORLANDO D. LENT, a citizen oi the United States,residing at Peekskill, in the county ot Westchester and State of NewYork, have invented a new and useful Window-Ventilator, oi which thefollowing is a specification. n

This invention relates to improvements in ventilators and similarclosures and has ier its object the provision ol a comparatively simpleand inexpensive device o this character capable of being quicklyattached to an ordinary window frame and by means oi which the interiorof a room may be ventilated through the window without producing adirect horizontal draft.

A further object ot the invention is to provide means lor preventing theentrance of dust or rain and snow when Ventilating the room and furtherto provide the upper window sash with a screen which bears against thelower sash so as to prevent the entrance oi mosquitoes and other insectsbetween the meeting rails oi said sashes when the latter are in open orpartly open position.

A still further object of the invention is to generally improve thisclass oi devices so as to increase their utility, durability andefiiciency as well as to reduce the cost oi manufacture.

With. these and other objects in view the invention consists in theconstruction and novel combination and arrangement of parts hereinafterfully described, and illustrated in the accompanying drawings, it beingunderstood that various changes in form, proportions and minor detailsof construction may be resorted to within the scope ol' the appendedclaims.

In the accompanying drawings forming a part oi this specification:Figure 1 is a side elevation of a window ventilator constructed inaccordance with my invention. Fig. 2 is a vertical sectional view oi thesame. Fig. 3 is a vertical sectional view oi a window showing theventilator in operation. Fig. 4 is an enlarged de* tail view of Fig. 3.Fig. 5 is a transverse sectional view taken on the line 5-5 ol' Fig. 4and looking in the direction oi the arrow.

Similar numerals oi reference indicate corresponding parts in all oi thefigures oi the drawings.

The device consists oi an angular plate or strip 5 i'ormed oi metal orother suitable material, the latter being secured to the under side oithe horizontal parting strip 6 oi the window and extending downwardly inengagement with the top rail 7 oi the upper sash 8.

The strip 5 is substantially L shaped in cross section,

while the short arm or horizontal portion 9 of the strip makes aslightly obtuse angle with the long arm 10 so that as the short arm orhorizontal portion 9 is drawn up against its seat upon the window frameby adjusting the screws or fastening devices 11 the long arm or verticalportion 10 will be pressed snugly against the adjacent rail of the uppersash, as best shown in Fig. 2

oi the drawing. The intermediate portion oi the long arm 10 is bowed orcurved outwardly and bears only near its lower edge upon the upper sash,the lower edge oi said arm being deflected laterally at 12 so as toextend outwardly from the upper sash and thus form a guide or said sashwhen the latter is' adjusted vertically of the window frame. When thesash is lowered below the deflected portion 12 oi the strip, theinherent resiliency et said strip causes it to spring into the path ofthe upper sash but as the sash is moved upwardly against said strip thedeected portion l2 oi the strip slides easily upward and over the innersurface oi the sash rail and maintains a substantially air tight jointtherewith.

Secured in any suitable manner to the lower rail 13 oi the upper sash isa strip oi wire netting or similar material 14 the free edge oi whichbears against the transparent plate oi the lower sash 15 thereby to forma closure between the sashes when the latter are adjusted to open orpartially open position and prevent the entrance oi mosquitoes and otherinsects, to the interior oi the room when the latter is beingventilated.

The iree edge oi the screen or wire netting 14 is provided with amarginal strip 16 formed of felt, rubbel or other yieldable materialthereby to cause the same to irictionally engage the surface oi theglass and prevent the insects from crawling over the free edge of `thescreen into the room.

It will, thus be seen that when the upper sash is lowered the air istree to enter between the sashes and circulate within the room, theplate 5 serving to prevent the entrance oi' dust and,rain or snow duringthe ventilating operation,

. It will also be noted that by reason of the wire netting flies andother insects are cffectually excluded from the interior ot the room.

While the device is principally designed for use in connection withwindows it is obvious that the same may be used with equally goodresults on transoms,l

sliding doors and similar closures.

From the foregoing description it will be seen that there is provided anextremely simple, inexpensive and eiicient device admirably adapted forthe attainment oi the ends in view.

Having thus described the invention what is claimed l. The combinationwith the window frame and sashes, of an imperforate plate havingangular-ly disposed arms of different lengths one of which is designedfor attachment to the Window-frame, the intermediate portion of theopposite arm being curved outwardly and provided with a laterallydeflected terminal adapted to frictionally engage the surface of theadjacent sash.

2. The combination with the window-frame and sashes, of an imperforatespring plate secured to the Windowrame and having its `free end disposedsubstantially parallel with the adjacent sash and its terminal portiondeilected laterv and a screen extended transversely across the bottom ofthe meeting sash and adapted to bear against the adjacent Sash.

3. The combination with the Window-frame and sashes, of an angular-lydisposed imperforate plate one arm of which is secured to thewindow-frame and the opposite end thereof extended downwardly andsecured in parallel relation to the adjacent sash and provided with alaterally deflected portion adapted to engage the adjacent surface ofsaid sash, a screen secured to the lower end of the upper sash, and apacking strip extending the entire length" of the screen at the freeedge thereof and adapted to frictionally engage the lower section.

4. The combination with the windowrame and sashes, of substantially Lshaped imperforate strip secured to the window-frame and extending theentire width of the adjacent sash, the intermediate portion of saidstrip being curved outwardly and provided with a laterally deflectedterminal adapted to yieldably engage the adjacent surface of the uppersash.

' 5. An attachment for window frames consisting of a substantially Lshaped resilient imperforate plate extending the entire width of thewindow-frame and provided with angularly disposed arms of differentlengths, one of said arms being disposed at an obtuse angle to theadjacent arm and having its terminal deflected laterally to form ayieldable bearing surface for engagement with a windowsash.

6. An attachment for window-frames consisting of a substantially Lshaped imperforate resilient strip having arms of different lengthsdisposed at an obtuse angle to each other and having a rounded portiondisposed at the juncture of said arms, the free end of the long armbeing deflected laterally to form a yieldable bearing surface forengagement with a window-sash.

7. An attachment for window-frames formed of a single piece ofimperforate spring metal bent to form angularly disposed arms ofdifferent lengths, the intermediate portion of the long arm of the platebeing curved outwardly and having its longitudinal edge deflectedlaterally to form a rounded bearing surface, there being a curvedportion disposed at the juncture of said arms.

In testimony that I claim the foregoing as my own, l have hereto affixedmy signature in the presence of two witnesses.

ORLANDO D. LEN'r.

Witnesses ELnnIrr P. JAMES, GEORGE LENT.

